Hub for at least partially muscle-powered vehicles

Abstract

A hub for at least partially muscle-powered vehicles having a hub axle, a hub body, a rotatable driving device, and a freewheel device. The freewheel device includes a first and a second engagement component cooperating with one another having at least one axial toothing each. The freewheel device is biased to the engaging position via a magnetic biasing device. A first magnetic device biases the first engagement component and a second magnetic device biases the second engagement component to the engaging position. At least one magnetic component comprises a carrier unit and a multitude of magnetic units disposed thereat.

The invention claimed is: 
     
       1. A hub for at least partially muscle-powered vehicles and in particular two-wheeled vehicles, comprising: a hub axle; a hub body; a rotatable driving device; and having a freewheel device;
 the freewheel device comprises a first and a second engagement component cooperating with one another having at least one axial toothing each; 
 the freewheel device is biased to an engaging position via a magnetic biasing device, said magnetic biasing device including a first magnetic device biases the first engagement component and a second magnetic device biases the second engagement component to the engaging position, wherein the first magnetic device and the second magnetic device each comprise a pair of mutually repelling magnetic components; and 
 at least one of the magnetic components comprises at least one carrier unit and a multitude of magnetic units disposed thereat, wherein the number of magnetic units on said at least one carrier unit is variable. 
 
     
     
       2. The hub according to  claim 1  wherein at least one of the magnetic components comprises a magnetic ring. 
     
     
       3. The hub according to  claim 1  wherein the carrier unit is disposed axially adjacent to the axial toothing. 
     
     
       4. The hub according to  claim 1  wherein the carrier unit consists of a lightweight material such as a light metal or a lightweight plastic or a natural material. 
     
     
       5. The hub according to  claim 1  wherein substantially all of the magnetic units of a magnetic component show the same pole orientation. 
     
     
       6. The hub according to  claim 1  wherein at least one engagement component comprises a toothed disk at which a magnetic component is disposed. 
     
     
       7. The hub according to  claim 6  wherein the toothed disk has a circumferential and substantially L-shaped cross section. 
     
     
       8. The hub according to  claim 1  wherein two toothed disks are provided as engagement components and both are received floating. 
     
     
       9. The hub according to  claim 8  wherein one toothed disk of the two toothed disks is disposed non-rotatably and axially movably in the hub body and the other toothed disk is disposed non-rotatably and axially movably at the driving device. 
     
     
       10. The hub according to  claim 1  wherein at least one toothed disk is received in a retaining ring which is non-rotatably disposed at the hub body. 
     
     
       11. The hub according to  claim 1  wherein at least one magnetic unit is at least partially disposed in an accommodation of the toothed disk. 
     
     
       12. The hub according to  claim 1  wherein at least one spacer sleeve is provided. 
     
     
       13. The hub according to  claim 1  wherein at least one engagement component is configured as a magnetic device.